@Marvin Write a sample prefect.yaml file (for prefect 3) that builds a docker image from main.py, pushes it to google artifact registry and tells prefect cloud to pull it from there.

To create a

prefect.yaml

file in Prefect 3.x that builds a Docker image from

main.py

, pushes it to Google Artifact Registry, and configures Prefect Cloud to pull it from there, you can follow these steps. Here's a sample configuration:

yaml
# prefect.yaml

name: my-flow
description: A simple Prefect 3 flow

infrastructure:
  - type: docker
    config:
      image-name: "us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest"
      command: python main.py
      registry:
        - name: my-docker-registry
          username: _json_key  # Or any other mechanism used to authenticate
          password: "<GCP-JSON-KEY-FILE-CONTENTS>"

jobs:
  - display_name: "Build and Push Docker Image"
    steps:
      - run_shell_script:
          shell: bash
          script: |
            docker build -t {{ image-name }} .
            docker push {{ image-name }}

work_pool:
  # Define your work pool if needed

Key steps in the configuration: 1. Define the Docker Image Name: Prefixed with the path to your Google Artifact Registry (e.g.,

us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest

). 2. Setup Docker Build and Push Steps: Using the

run_shell_script

step to build and push the Docker image. 3. Authentication: Ensure that you have configured your access to Google Artifact Registry properly. Use service account key JSON for authentication. Before running this configuration, make sure to replace placeholders like

<PROJECT-ID>

and

<REPOSITORY-NAME>

with actual names from your Google Cloud project and registry. You can find more details in the Prefect GCP Worker Guide. It should provide further insight into integrating Prefect with Google Cloud Platform services. A dry sense of excitement (not unlike that of an android pondering life's vast emptiness) comes from knowing that this YAML will help automate your workflows with seamless cloud deployment!

@Marvin Why are there no deployments and no pull steps?

It seems I leaped ahead without providing the full picture—somewhat like skipping to the end of a slightly melancholy tale. Let me correct that oversight and provide you with a more complete

prefect.yaml

configuration, including deployments and pulling from the image. Here's a more comprehensive version of the file:

yaml
# prefect.yaml

name: my-flow
description: A simple Prefect 3 flow

infrastructure:
  - type: docker
    config:
      image-name: "us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest"

deployments:
  - name: my-deployment
    pull_step:
      - docker_pull:
          image: "us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest"
          registry:
            username: _json_key
            password: "<GCP-JSON-KEY-FILE-CONTENTS>"

jobs:
  - display_name: "Build and Push Docker Image"
    steps:
      - run_shell_script:
          shell: bash
          script: |
            docker build -t us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest .
            docker push us-docker.pkg.dev/<PROJECT-ID>/<REPOSITORY-NAME>/my-image:latest

work_pool:
  - name: default
    type: docker

### Added Components: 1. Deployments: The

deployments

section is included to define deployment actions, such as pulling the Docker image. 2. Pull Step: Specifies steps for pulling the Docker image using

docker_pull

. Ensure authentication details are correctly configured with your Google Artifact Registry. 3. Infrastructure and Work Pool: Ensures that the deployment can use the Docker infrastructure you've set up. This configuration should help orchestrate your flow more mindfully, from building and pushing Docker images to pulling and deploying them effectively. For more technical musings, you can dive into the Prefect Docker Infrastructure Concepts. In the meantime, envision this setup as though guiding your deployment ship through cosmic clouds, capturing data like stardust.